Specifications

Allen-Bradley ControlLogix Ethernet Driver Help
Standard Boolean*
Byte, Char
Word, Short,
BCD
DWord, Long,
LBCD
Float***
None
Array
Element
Byte, Char
Word, Short,
BCD
DWord, Long,
LBCD
Float***
The Controller tag must be an array.
Array
w/o
Offset
Boolean Array 1. Use this case to have the bits within an SINT in array form.
Note: This is not an array of SINTs in Boolean notation.
2. Applies to bit-within-SINT only. Example: tag_1.0{8}.
3. .bit + array size cannot exceed 8 bits. Example: tag_1.1{8} exceeds
an SINT, tag_1.0{8} does not.
Array
w/o
Offset
Byte Array, Char
Array
Word Array,
Short Array,
BCD Array**
DWord Array,
Long Array,
LBCD Array**
Float
Array**,***
If accessing more than a single element, the Controller tag must be an array.
Array w/
Offset
Byte Array, Char
Array
Word Array,
Short Array,
BCD Array**
DWord Array,
Long Array,
LBCD Array**
Float
Array**,***
The Controller tag must be an array.
Bit Boolean 1. The range is limited from 0 to 7.
2. If the Controller tag is an array, the bit class reference must be
prefixed by an array element class reference. Example: tag_1
[2,2,3].0.
String String 1. If accessing a single element, the Controller tag need not be an array.
Note: The value of the string is the ASCII equivalent of the SINT
value. Example: SINT = 65 dec = "A".
2. If accessing more than a single element, the Controller tag must be an
array. The value of the string is the null-terminated ASCII equivalent of
all the SINTs in the string. 1 character in string = 1 SINT.
*non-zero values are clamped to true.
**Each element of the array corresponds to an element in the SINT array. Arrays are not packed.
*** Float value equals the face value of Controller tag in float form (non-IEEE floating-point number).
Examples
Examples highlighted in yellow signify common use cases.
SINT Controller Tag - sinttag = 122 (decimal)
Server Tag Address Format Data Type Notes
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